Ferroelectric properties of Pb(Zr1/2Ti1/2)O3–Pb(Zn1/3Nb2/3)O3 ceramics under compressive stress

Fabrication, phase formation and microstructure of Ni4Nb2O9 ceramics fabricated by using the two-stage sintering technique

“…Ni 4 Nb 2 O 9 ceramics was achieved by adding 2 wt% polyvinyl alcohol (PVA) binder, prior to pressing into pellets (10 mm in diameter and 1.0-1.5 mm in thickness) using a uniaxial die press at 100 MPa. After the binder was burned out at 500 •C for 1 h, green pellets were sintered in air at various dwell time (1-4 h) and heating/cooling rates of 10 The microstructure and grain sizes were directly imaged, using scanning electron microscopy (SEM; JEOL JSM-840A).The chemical compositions of the phase formed were elucidated by an energydispersive X-ray (EDX) analyzer with an ultra-thin window. EDX spectra were quantified with the virtual standard peaks supplied with the Oxford Instruments eXL software.…”

“…Densities of the ceramics were measured by using the Archimedes principle. Ferroelectric hysteresis (P-E) loops were determined using a computer controlled modified Sawyer-Tower circuit at room temperature and 25 Hz [10]. Remanent polarization (P r ), saturation polarization (P sat ) and coercive field (E c ) were evaluated from the loops.…”

Dielectric Properties of Pb(Zr1/2Ti1/2)O3-Pb(Zn1/3Nb2/3)O3Ceramics Under Compressive Stress Applied Perpendicular to Electric Field

“…The results clearly showed that the effects of stress on the dielectric properties depended significantly on ceramic compositions and stress levels. Our recent investigations also showed that the electrical properties of the PZT-PZN ceramics changed significantly with increasing compressive stress applied parallel to electric field direction, with the magnitude of the changes depending greatly on the ceramic compositions [22,23]. Recently, many investigations also reported interesting changes of electrical properties of many ferroelectric ceramics under the influences of the compressive stress applied perpendicular to the electric field [15,17,[24][25][26][27][28].…”

Synthesis and Characterization of Pb(Zr, Ti)O-Pb(Nb, Zn)O Thin Film Cantilevers for Energy Harvesting Applications

“…Mechanical vibrations have received attention as a potential source of power for sensors and wireless electronics in a wide variety of applications [4]. To accomplish this, improving the piezoelectric material used in the cantilever is of paramount importance [5].…”

“…Research to improve the PZT properties, from the material and electrical standpoint, has been mainly accomplished by doping conventional PZT with different elements to "relax" the material [5,9]. Previous investigations on the dielectric and electrical properties of many ceramic systems, such as barium titanate (BT), lead zirconate titanate (PZT), lead magnesium niobate (PMN), lead titanate (PT), PMN-PT, PZT-BT, and PMN-PZT have demonstrated the importance of the subject [10][11][12][13] (PZT-PZN) system because of its high dielectric, piezoelectric, and ferroelectric properties [14][15][16].…”